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drm/ast: Remove BMC output

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Ast's BMC connector tracks the status of an underlying physical
connector and updates the BMC status accordingly. This functionality
works around GNOME's settings app, which cannot handle multiple
outputs on the same CRTC.

The workaround is now obsolete as all code for physical outputs
handle BMC support internally. Hence, remove the driver's code and
the BMC output entirely.

v3:
- remove struct ast_bmc_connector

Signed-off-by: Thomas Zimmermann <tzimmermann@suse.de>
Reviewed-by: Jocelyn Falempe <jfalempe@redhat.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20240815151953.184679-12-tzimmermann@suse.de
This commit is contained in:
Thomas Zimmermann 2024-08-15 17:18:53 +02:00
parent 2a2391f857
commit 5e9c0d1c5e
2 changed files with 0 additions and 126 deletions
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19
drivers/gpu/drm/ast/ast_drv.h
View File

@ -162,21 +162,6 @@ to_ast_connector(struct drm_connector *connector)
return container_of(connector, struct ast_connector, base);
}
/*
* BMC
*/
struct ast_bmc_connector {
struct drm_connector base;
struct drm_connector *physical_connector;
};
static inline struct ast_bmc_connector *
to_ast_bmc_connector(struct drm_connector *connector)
{
return container_of(connector, struct ast_bmc_connector, base);
}
/*
* Device
*/
@ -222,10 +207,6 @@ struct ast_device {
struct drm_encoder encoder;
struct ast_connector connector;
} astdp;
struct {
struct drm_encoder encoder;
struct ast_bmc_connector bmc_connector;
} bmc;
} output;
bool support_wide_screen;

107
drivers/gpu/drm/ast/ast_mode.c
View File

@ -34,10 +34,8 @@
#include <drm/drm_atomic.h>
#include <drm/drm_atomic_helper.h>
#include <drm/drm_atomic_state_helper.h>
#include <drm/drm_crtc.h>
#include <drm/drm_damage_helper.h>
#include <drm/drm_edid.h>
#include <drm/drm_format_helper.h>
#include <drm/drm_fourcc.h>
#include <drm/drm_gem_atomic_helper.h>
@ -1309,103 +1307,6 @@ static int ast_crtc_init(struct drm_device *dev)
return 0;
}
/*
* BMC virtual Connector
*/
static const struct drm_encoder_funcs ast_bmc_encoder_funcs = {
.destroy = drm_encoder_cleanup,
};
static int ast_bmc_connector_helper_detect_ctx(struct drm_connector *connector,
struct drm_modeset_acquire_ctx *ctx,
bool force)
{
struct ast_bmc_connector *bmc_connector = to_ast_bmc_connector(connector);
struct drm_connector *physical_connector = bmc_connector->physical_connector;
/*
* Most user-space compositors cannot handle more than one connected
* connector per CRTC. Hence, we only mark the BMC as connected if the
* physical connector is disconnected. If the physical connector's status
* is connected or unknown, the BMC remains disconnected. This has no
* effect on the output of the BMC.
*
* FIXME: Remove this logic once user-space compositors can handle more
* than one connector per CRTC. The BMC should always be connected.
*/
if (physical_connector && physical_connector->status == connector_status_disconnected)
return connector_status_connected;
return connector_status_disconnected;
}
static int ast_bmc_connector_helper_get_modes(struct drm_connector *connector)
{
return drm_add_modes_noedid(connector, 4096, 4096);
}
static const struct drm_connector_helper_funcs ast_bmc_connector_helper_funcs = {
.get_modes = ast_bmc_connector_helper_get_modes,
.detect_ctx = ast_bmc_connector_helper_detect_ctx,
};
static const struct drm_connector_funcs ast_bmc_connector_funcs = {
.reset = drm_atomic_helper_connector_reset,
.fill_modes = drm_helper_probe_single_connector_modes,
.destroy = drm_connector_cleanup,
.atomic_duplicate_state = drm_atomic_helper_connector_duplicate_state,
.atomic_destroy_state = drm_atomic_helper_connector_destroy_state,
};
static int ast_bmc_connector_init(struct drm_device *dev,
struct ast_bmc_connector *bmc_connector,
struct drm_connector *physical_connector)
{
struct drm_connector *connector = &bmc_connector->base;
int ret;
ret = drm_connector_init(dev, connector, &ast_bmc_connector_funcs,
DRM_MODE_CONNECTOR_VIRTUAL);
if (ret)
return ret;
drm_connector_helper_add(connector, &ast_bmc_connector_helper_funcs);
bmc_connector->physical_connector = physical_connector;
return 0;
}
static int ast_bmc_output_init(struct ast_device *ast,
struct drm_connector *physical_connector)
{
struct drm_device *dev = &ast->base;
struct drm_crtc *crtc = &ast->crtc;
struct drm_encoder *encoder = &ast->output.bmc.encoder;
struct ast_bmc_connector *bmc_connector = &ast->output.bmc.bmc_connector;
struct drm_connector *connector = &bmc_connector->base;
int ret;
ret = drm_encoder_init(dev, encoder,
&ast_bmc_encoder_funcs,
DRM_MODE_ENCODER_VIRTUAL, "ast_bmc");
if (ret)
return ret;
encoder->possible_crtcs = drm_crtc_mask(crtc);
ret = ast_bmc_connector_init(dev, bmc_connector, physical_connector);
if (ret)
return ret;
ret = drm_connector_attach_encoder(connector, encoder);
if (ret)
return ret;
return 0;
}
/*
* Mode config
*/
@ -1457,7 +1358,6 @@ static const struct drm_mode_config_funcs ast_mode_config_funcs = {
int ast_mode_config_init(struct ast_device *ast)
{
struct drm_device *dev = &ast->base;
struct drm_connector *physical_connector = NULL;
int ret;
ret = drmm_mutex_init(dev, &ast->modeset_lock);
@ -1502,29 +1402,22 @@ int ast_mode_config_init(struct ast_device *ast)
ret = ast_vga_output_init(ast);
if (ret)
return ret;
physical_connector = &ast->output.vga.connector.base;
}
if (ast->tx_chip_types & AST_TX_SIL164_BIT) {
ret = ast_sil164_output_init(ast);
if (ret)
return ret;
physical_connector = &ast->output.sil164.connector.base;
}
if (ast->tx_chip_types & AST_TX_DP501_BIT) {
ret = ast_dp501_output_init(ast);
if (ret)
return ret;
physical_connector = &ast->output.dp501.connector.base;
}
if (ast->tx_chip_types & AST_TX_ASTDP_BIT) {
ret = ast_astdp_output_init(ast);
if (ret)
return ret;
physical_connector = &ast->output.astdp.connector.base;
}
ret = ast_bmc_output_init(ast, physical_connector);
if (ret)
return ret;
drm_mode_config_reset(dev);